private async void ExportImage(object sender, RoutedEventArgs e)
{
var picker = new FileSavePicker();
picker.FileTypeChoices.Add("png", new List <string> {
".png"
});
picker.DefaultFileExtension = ".png";
StorageFile file = await picker.PickSaveFileAsync();
if (file != null)
{
var saveStream = await file.OpenStreamForWriteAsync();
var readStream = screen.GetStream(ImageFormat.Png, true);
var data = new byte[readStream.Length];
readStream.Read(data, 0, (int)readStream.Length);
saveStream.Write(data, 0, data.Length);
saveStream.Dispose();
}
}
private async void ExportImage(object sender, RoutedEventArgs e)
{
if (selection.Width == 0 || selection.Height == 0)
{
MessageDialog md = new MessageDialog(Strings.EmptySelectionMessage);
md.ShowAsync();
return;
}
var picker = new FileSavePicker();
picker.FileTypeChoices.Add("png", new List <string> {
".png"
});
picker.DefaultFileExtension = ".png";
StorageFile file = await picker.PickSaveFileAsync();
if (file != null)
{
var saveStream = await file.OpenStreamForWriteAsync();
var crop = new C1Bitmap((int)selection.Width, (int)selection.Height);
crop.BeginUpdate();
for (int x = 0; x < selection.Width; ++x)
{
for (int y = 0; y < selection.Height; ++y)
{
crop.SetPixel(x, y, bitmap.GetPixel(x + (int)selection.X, y + (int)selection.Y));
}
}
crop.EndUpdate();
var readStream = crop.GetStream(ImageFormat.Png, true);
var data = new byte[readStream.Length];
readStream.Read(data, 0, (int)readStream.Length);
saveStream.Write(data, 0, data.Length);
saveStream.Dispose();
}
}